164631424 has 32 divisors (see below), whose sum is σ = 342242640. Its totient is φ = 78735360.

The previous prime is 164631419. The next prime is 164631433. The reversal of 164631424 is 424136461.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25017 + ... + 30904.

Almost surely, 2^164631424 is an apocalyptic number.

It is an amenable number.

164631424 is an abundant number, since it is smaller than the sum of its proper divisors (177611216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164631424 is an equidigital number, since it uses as much as digits as its factorization.

164631424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55958 (or 55946 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 164631424 is about 12830.8777564125. The cubic root of 164631424 is about 548.0719531855.

Adding to 164631424 its reverse (424136461), we get a palindrome (588767885).

The spelling of 164631424 in words is "one hundred sixty-four million, six hundred thirty-one thousand, four hundred twenty-four".